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ACDelco GM Original Equipment Secondary Air Injection Pumps are GM-recommended replacements for your vehicle’s original components. The secondary air system injects air into your vehicle’s downstream exhaust system to assist in minimizing emissions. These original equipment secondary air injection pumps have been manufactured to fit your GM vehicle, providing the same performance, durability, and service life you expect from General Motors. ⚠ WARNING: Cancer and Reproductive Harm –
| Brand |
ACDelco |
|---|---|
| Part Number (MPN) |
12654558 |
| SKU |
12654558 |
| UPC / GTIN |
808709091707 / 00808709091707 |
| Condition |
New |
| Other Names |
12654558 |
| Connector Gender |
Female |
| Connector Quantity |
1 |
| FAQ – Answer 1 |
Yes. It can eventually cause damage to the catalytic converter. |
| FAQ – Answer 2 |
Yes. The one-way check valve can wear or fail, allowing water (which occurs naturally in the exhaust) back into the pump. |
| FAQ – Question 1 |
Can a faulty air pump damage other components? |
| FAQ – Question 2 |
Can water enter the air pump? |
| Features & Benefits – Bullet 1 |
Helps maintain controlled air flow to proper air injection components |
| Features & Benefits – Bullet 2 |
GM-recommended replacement part for your GM vehicle’s original factory component |
| Features & Benefits – Bullet 3 |
Offering the quality, reliability, and durability of GM OE |
| Features & Benefits – Bullet 4 |
Manufactured to GM OE specification for fit, form, and function |
| Good Maintenance Practices – Section 1 – Bullet 1 |
Use approved octane fuel for your vehicle. |
| Good Maintenance Practices – Section 1 – Bullet 2 |
Regularly inspect the air injection system for leaks or damage. |
| Good Maintenance Practices – Section 1 – Bullet 3 |
Replace the air pump at sign of excessive noise. |
| Grade Type |
Regular |
| Height (in) |
8.5 |
| Hose Connector Quantity |
2 |
| Hose Inside Diameter (in) |
1.21 |
| Hose Inside Diameter (mm) |
30.7 |
| Hose Outside Diameter |
1.44 |
| Housing Material |
Plastic, Aluminum |
| Length (in) |
10.12 |
| Meets or Exceeds Original Equipment Manufacture Specifications |
Yes |
| Mounting Hardware Included |
No |
| Programming Required |
No |
| Pulley Included |
No |
| Terminal Gender |
Male |
| Terminal Quantity |
2 |
| Terminal Type |
Blade Pin |
| Weight (lb) |
2.65 |
| Width (in) |
8.62 |
| Wire Quantity |
2 |
| Year |
2014 |
| Make |
Cadillac |
| Model |
ATS |
| Body & Trim |
Base |
| Engine & Transmission |
2.5L L4 – Gas |
| GM |
12654558 |
Vehicle Fitment
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